/
ContentQueryService.cs
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/
ContentQueryService.cs
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// ==========================================================================
// Squidex Headless CMS
// ==========================================================================
// Copyright (c) Squidex UG (haftungsbeschraenkt)
// All rights reserved. Licensed under the MIT license.
// ==========================================================================
using System.Diagnostics;
using Microsoft.Extensions.Options;
using Squidex.Domain.Apps.Entities.Contents.Repositories;
using Squidex.Domain.Apps.Entities.Schemas;
using Squidex.Infrastructure;
using Squidex.Infrastructure.Security;
using Squidex.Infrastructure.Translations;
using Squidex.Shared;
namespace Squidex.Domain.Apps.Entities.Contents.Queries;
public sealed class ContentQueryService : IContentQueryService
{
private const string SingletonId = "_schemaId_";
private readonly IAppProvider appProvider;
private readonly IContentEnricher contentEnricher;
private readonly IContentRepository contentRepository;
private readonly IContentLoader contentLoader;
private readonly ContentQueryParser queryParser;
private readonly ContentOptions options;
public ContentQueryService(
IAppProvider appProvider,
IContentEnricher contentEnricher,
IContentRepository contentRepository,
IContentLoader contentLoader,
IOptions<ContentOptions> options,
ContentQueryParser queryParser)
{
this.appProvider = appProvider;
this.contentEnricher = contentEnricher;
this.contentRepository = contentRepository;
this.contentLoader = contentLoader;
this.options = options.Value;
this.queryParser = queryParser;
}
public async Task<IEnrichedContentEntity?> FindAsync(Context context, string schemaIdOrName, DomainId id, long version = EtagVersion.Any,
CancellationToken ct = default)
{
Guard.NotNull(context);
using (var activity = Telemetry.Activities.StartActivity("ContentQueryService/FindAsync"))
{
activity?.SetTag("schemaName", schemaIdOrName);
activity?.SetTag("contentId", id);
var schema = await GetSchemaOrThrowAsync(context, schemaIdOrName, ct);
IContentEntity? content;
if (id.ToString().Equals(SingletonId, StringComparison.Ordinal))
{
id = schema.Id;
}
if (version > EtagVersion.Empty)
{
content = await contentLoader.GetAsync(context.App.Id, id, version, ct);
}
else
{
content = await FindCoreAsync(context, id, schema, ct);
}
if (content == null || content.SchemaId.Id != schema.Id)
{
return null;
}
return await TransformAsync(context, content, ct);
}
}
public async Task<IResultList<IEnrichedContentEntity>> QueryAsync(Context context, string schemaIdOrName, Q q,
CancellationToken ct = default)
{
Guard.NotNull(context);
using (var activity = Telemetry.Activities.StartActivity("ContentQueryService/QueryAsync"))
{
activity?.SetTag("schemaName", schemaIdOrName);
if (q == null)
{
return ResultList.Empty<IEnrichedContentEntity>();
}
var schema = await GetSchemaOrThrowAsync(context, schemaIdOrName, ct);
if (!HasPermission(context, schema, PermissionIds.AppContentsRead))
{
q = q with { CreatedBy = context.UserPrincipal.Token() };
}
q = await ParseCoreAsync(context, q, schema, ct);
var contents = await QueryCoreAsync(context, q, schema, ct);
if (q.Ids is { Count: > 0 })
{
contents = contents.SortSet(x => x.Id, q.Ids);
}
return await TransformAsync(context, contents, ct);
}
}
public async Task<IResultList<IEnrichedContentEntity>> QueryAsync(Context context, Q q,
CancellationToken ct = default)
{
Guard.NotNull(context);
using (Telemetry.Activities.StartActivity("ContentQueryService/QueryAsync"))
{
if (q == null)
{
return ResultList.Empty<IEnrichedContentEntity>();
}
var schemas = await GetSchemasAsync(context, ct);
if (schemas.Count == 0)
{
return ResultList.Empty<IEnrichedContentEntity>();
}
q = await ParseCoreAsync(context, q, null, ct);
var contents = await QueryCoreAsync(context, q, schemas, ct);
if (q.Ids is { Count: > 0 })
{
contents = contents.SortSet(x => x.Id, q.Ids);
}
return await TransformAsync(context, contents, ct);
}
}
private async Task<IResultList<IEnrichedContentEntity>> TransformAsync(Context context, IResultList<IContentEntity> contents,
CancellationToken ct)
{
var transformed = await TransformCoreAsync(context, contents, ct);
return ResultList.Create(contents.Total, transformed);
}
private async Task<IEnrichedContentEntity> TransformAsync(Context context, IContentEntity content,
CancellationToken ct)
{
var transformed = await TransformCoreAsync(context, Enumerable.Repeat(content, 1), ct);
return transformed[0];
}
private async Task<IReadOnlyList<IEnrichedContentEntity>> TransformCoreAsync(Context context, IEnumerable<IContentEntity> contents,
CancellationToken ct)
{
using (Telemetry.Activities.StartActivity("ContentQueryService/TransformCoreAsync"))
{
return await contentEnricher.EnrichAsync(contents, context, ct);
}
}
public async Task<ISchemaEntity> GetSchemaOrThrowAsync(Context context, string schemaIdOrName,
CancellationToken ct = default)
{
var schema = await GetSchemaAsync(context, schemaIdOrName, ct);
if (schema == null)
{
throw new DomainObjectNotFoundException(schemaIdOrName);
}
return schema;
}
public async Task<ISchemaEntity?> GetSchemaAsync(Context context, string schemaIdOrName,
CancellationToken ct = default)
{
Guard.NotNull(context);
Guard.NotNullOrEmpty(schemaIdOrName);
ISchemaEntity? schema = null;
var canCache = !context.IsFrontendClient;
if (Guid.TryParse(schemaIdOrName, out var guid))
{
var schemaId = DomainId.Create(guid);
schema = await appProvider.GetSchemaAsync(context.App.Id, schemaId, canCache, ct);
}
if (schema == null)
{
schema = await appProvider.GetSchemaAsync(context.App.Id, schemaIdOrName, canCache, ct);
}
if (schema != null && !HasPermission(context, schema, PermissionIds.AppContentsReadOwn))
{
throw new DomainForbiddenException(T.Get("schemas.noPermission"));
}
return schema;
}
private async Task<List<ISchemaEntity>> GetSchemasAsync(Context context,
CancellationToken ct)
{
var schemas = await appProvider.GetSchemasAsync(context.App.Id, ct);
return schemas.Where(x => IsAccessible(x) && HasPermission(context, x, PermissionIds.AppContentsReadOwn)).ToList();
}
private async Task<Q> ParseCoreAsync(Context context, Q q, ISchemaEntity? schema,
CancellationToken ct)
{
using (var combined = CancellationTokenSource.CreateLinkedTokenSource(ct))
{
// Enforce a hard timeout
combined.CancelAfter(options.TimeoutQuery);
return await queryParser.ParseAsync(context, q, schema, ct);
}
}
private async Task<IResultList<IContentEntity>> QueryCoreAsync(Context context, Q q, ISchemaEntity schema,
CancellationToken ct)
{
using (var combined = CancellationTokenSource.CreateLinkedTokenSource(ct))
{
// Enforce a hard timeout
combined.CancelAfter(options.TimeoutQuery);
return await contentRepository.QueryAsync(context.App, schema, q, context.Scope(), combined.Token);
}
}
private async Task<IResultList<IContentEntity>> QueryCoreAsync(Context context, Q q, List<ISchemaEntity> schemas,
CancellationToken ct)
{
using (var combined = CancellationTokenSource.CreateLinkedTokenSource(ct))
{
// Enforce a hard timeout
combined.CancelAfter(options.TimeoutQuery);
return await contentRepository.QueryAsync(context.App, schemas, q, context.Scope(), combined.Token);
}
}
private async Task<IContentEntity?> FindCoreAsync(Context context, DomainId id, ISchemaEntity schema,
CancellationToken ct)
{
using (var combined = CancellationTokenSource.CreateLinkedTokenSource(ct))
{
// Enforce a hard timeout
combined.CancelAfter(options.TimeoutFind);
return await contentRepository.FindContentAsync(context.App, schema, id, context.Scope(), combined.Token);
}
}
private static bool IsAccessible(ISchemaEntity schema)
{
return schema.SchemaDef.IsPublished;
}
private static bool HasPermission(Context context, ISchemaEntity schema, string permissionId)
{
return context.UserPermissions.Allows(permissionId, context.App.Name, schema.SchemaDef.Name);
}
}